Samuel Anthony Barnett & Stanley Wyatt, Instinct and Intelligence: The Science of Behaviour in Animals and Man, Londres, MacGibbon & Kee, 1967.

Nests, webs, combs, the tube worms and of caddis flies, all have a structure characteristic of the species that makes them, and building usually continues until just this pattern is attained.
p. 129.

There is a similary building : a caddis fly larva an dits neatly made case here to the behavior of hive bees in constructing their combs.

p.131.